Laboratory Safety Guidelines Quiz

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Questions and Answers

What should students do if they do not understand a direction during a laboratory class?

  • Proceed with the activity anyway.
  • Wait until the end of class to ask.
  • Ask the teacher for clarification before proceeding. (correct)
  • Ignore the direction.

Why is it important to keep hands away from the face and mouth while using chemicals?

  • To avoid contamination and accidental ingestion of substances. (correct)
  • To maintain focus on the task at hand.
  • To prevent distractions during the experiment.
  • To keep the laboratory area clean.

What is the proper action if a student feels the need for a break during laboratory work?

  • Take a break at their workstation.
  • Leave the laboratory without informing the teacher.
  • Stand up and stretch in the lab.
  • Request permission from the teacher to step out. (correct)

What items should students bring to the laboratory?

<p>Only the materials necessary for the laboratory session. (B)</p> Signup and view all the answers

What is the consequence of consuming food or beverages in the laboratory?

<p>It is strongly discouraged due to safety regulations. (D)</p> Signup and view all the answers

What personal protective equipment is required when using chemicals in the laboratory?

<p>Goggles or eyeglasses should be worn. (A)</p> Signup and view all the answers

How should waste be disposed of in the laboratory?

<p>In appropriate bins or containers designated for waste. (D)</p> Signup and view all the answers

What should students do with long hair during laboratory activities?

<p>Wear a hairnet or clip it neatly to ensure it is secured. (A)</p> Signup and view all the answers

What type of clothing is prohibited in the laboratory?

<p>Shorts (A)</p> Signup and view all the answers

When handling chemicals, what is the safest practice regarding your skin?

<p>Avoid handling with bare hands (A)</p> Signup and view all the answers

What should you do if you do not understand how to use a piece of equipment?

<p>Ask your teacher for help (D)</p> Signup and view all the answers

Which of the following is NOT a correct procedure when pouring chemicals?

<p>Pour liquid directly from the reagent bottle to your desk (C)</p> Signup and view all the answers

In the event of an accident, what is the first step you should take?

<p>Report to the teacher or technician immediately (D)</p> Signup and view all the answers

What is the appropriate action when dealing with broken glassware?

<p>Inform your teacher and wait for help (B)</p> Signup and view all the answers

How should you correctly waft a vapor towards your nose?

<p>Waft using a cupped hand (A)</p> Signup and view all the answers

What is the correct procedure for using a burner in the laboratory?

<p>Never leave a burner unattended (C)</p> Signup and view all the answers

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Study Notes

General Guidelines

  • Students must work under teacher supervision at all times.
  • Follow all instructions; seek clarification from the teacher if needed.
  • Don’t touch equipment or materials until explicitly instructed.
  • Come prepared by reading all relevant procedures before class.
  • Food and beverages are prohibited; laboratory glassware cannot be used for consumption.
  • Laboratory activities should be monitored continuously; do not distract others or wander.
  • Familiarize yourself with emergency locations, including medicine cabinets and fire exits.
  • Maintain cleanliness; only bring necessary materials and ensure aisles are clear.
  • Keep hands away from face while using chemicals; wash hands after experiments.
  • Dispose of waste properly; use sinks only for water and diluted substances.

Dress Code

  • Eyewear protection is mandatory when using chemicals or glassware; avoid contact lenses.
  • Wear laboratory gowns or aprons; secure long hair with ties or hairnets.
  • Use gloves when necessary.
  • Long pants and closed-toe shoes are required; shorts, sandals, and slippers are not allowed.

Accidents and Injuries

  • Know where all emergency devices are located and how to use them.
  • Report any accidents or injuries to the teacher or technician immediately.

Handling Chemicals and Equipment

  • Treat all chemicals as hazardous; avoid skin contact.
  • Never taste chemicals or smell directly; waft vapors towards the nose if directed.
  • Always read container labels twice before usage and only take needed amounts.
  • Avoid returning unused chemicals to original containers.
  • Use proper techniques for opening and pouring; cover containers after use.
  • Work in fume hoods for corrosive substances.
  • Measure reagents at their designated area rather than moving them to workstations.
  • Always pour acids into water to prevent splattering.
  • Inspect glassware for damage before use; avoid using broken or dirty items.
  • Seek assistance from the teacher if unsure about equipment operation.
  • Never leave burners unattended; avoid using improvised lighting methods.
  • Use appropriate glassware for heating to ensure accurate measurements.

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